When during a blowjob the female/male giving the blowjob grabs a hold around the ball sac and crushes the balls.
Often done by people with "cbt" fetishes (check wiki) and also dominatrices.
"You cant believe how great it felt when Linda and I tried something new, she really likes Mashing the potatoes. It really spiced up our marriage and felt great."
When someone/something murks your good vibes to a point where there’s no more vibes to be murked
Bro, you really just mashed my beans!
"I am going to have roast beef & mashed potato tonight!" - Jack
"Okay wear protection" - Jake
An app with loads of TRASH games in and it's a rlly good food that your teacher stuffs in your laptop and that's how the app pops up in it.
Ok class we will be playing some Purple Mash on the laptop!
*stuffs a whole load of purple mash in the laptops*
Its the act of stuffing a condom into the lips of a vagina but not really entering.
Joe: Hey, did you actually have sex?
David: No, I was just mash-potatoing her.
Someone who has a voracious and insatiable appetite for mashed potatoes and could easily devour 5kg of mashed maris pipers until they see everything in a creamy white hue
Quarter pounder with cheese and a side of mash for the mash hound